Damper for oil-burning stoves



Mafch 26, 1929. J. M. FINNELL ET AL 0 5 DAMPER FOR OIL BURNING STOVES Filed Sept. 21, 1925 nil INVENTORS JT/l. finn'eZZ y 67*6l 6 if A TTORNEY.

Patented Mar. 26, 1929.

TED {STAT ES PATENT: OFFICE. 1

JAMES M. FINNELL, OF OMAHA, NEBRASKA, AND ERNEST P. GREVE, F SHELBY, IOWA.

DAMPER FOR OIL-BURNING STOVES.

Application filed September 21,1925. Serial N'o. 57,678.

side of the combustion chamber casing.

Means are provided for adjusting the damper vertically in the casing in which the shaft carrying the damper is disposed and consisting of vertical slots through which the shaft bearings willpass, the damper being held in different positions by locknutsdisposed on. the shaft on either side of the casing,

thereby allowing the damper to be adjusted vertically according to the draft of the chimney or smoke shaft. I

Another object of the adjustable mounting of the damper is that it may be set sufficiently close to the burner to retain the heat generated by the burner in the lower part of the combustion chamber and eliminate waste by preventing the heat from passing up the stove pipe or smoke stack.

lVith the above and other objects in view the invention resides in the combination and arrangement of parts as hereinafter set forth, shown in the drawing, described and claimed, it being understood that changes in the pre cise embodiment of the invention may be made within the scope, of what is claimed without departing from the spirit of the in vention. V

Referring to the drawing wherein the single figure is aperspective View of the stove, the numeral 1 designates a conventional form of stove and2 the door thereof which is supported on legs 3 and is provided with a stove pipe 4 used in connection with stoves of limited size and 5 an oil supply tank. In larger stoves larger supply tanks are used and are usually disposed in excavations in ground adjacent the stove. In this stove the valve 6 is provided to regulate the oil supply to the burner 13 thrdugh the vertical supply pipe 7 and horizontal pipe 8, which pipe connects with a T 9,

which is attached to a nipple 10. The nip-' ple 10 is in turn attached to coupling 11 which carries a nipple 12 attached to the burner 13. A nipple 14 is attached to an overflow pan 14.. The nipple 14: is attached to a coupling 15 which carries a nipple 16 attached to a T 17 and connected to the T 17 is a horizontal pipe 18 through which pipe the overflow oil passes at end 20 into a receptacle 19. The receptacle 19 is provided with a bail 21 with means 22 for suspending this receptacle, The main element of the invention is the damper plate 23 which is attached to the horizontal shaft 2d which shaft carries a damper handle at one end and locknuts 26 on threaded portions of the shaft at both ends of said shaft. The locknuts are principally for the purpose of retaining the damper plate at any desired angle and elevation. The shaft 24 extends through vertically disposed slots 24: in the stove, therefore it will be seen that the damper can be placed at different elevations in relation to the burner 13. Another important element of the invention is the threaded caps 27 and 28 applied to the lower threaded end of nipples 29 and 30 and by removing these caps any sediment that may collect in the nipples and caps may be easily removed.

From the above it will be seen that means is provided for convenient control of the heat generated by an oil burner situated in a stove over which burner the damper is disposed and that the damper may be set at different positions in relation to the burner and that by regulating the draft, the heat is radiated from the stove and utilized for heating purposes instead of'a large portion of the heat passing off through the pipe or Smokestack. It will also be seen that the damper is smaller than the interior diameter of the stove therefore a sufficient amount of draft will be maintained at all times.

The invention having been set forth what is claimed as new and useful is The combination with a stove, an oil burner in the bottom of said stove, and a stove pipe, of a horizontally and rockably mouned damper within the stove above the burner, said damper being smaller in diameter than the diameter of the stove, said damper being cu ried by a, shaft extendburner and a handle member carried by one in'g transversely through the stove and end of the shaft.

I 7 through vertically disposed slots in opposite In testimony whereof we affix our signasides of the stove; nutsth'readed on said shaft tures.

5 and cooperating with the outer sides of the stove for holding the damper and shaft in JAMES M. FINNELL. various adjusted positions in relation to the ERNEST P. GREVE. 

